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Entry  Sun Dec 20 21:39:40 2009, rana, jenne, kiwamu, Update, ASS, OAF Model update and build instructions 
    Reply  Mon Dec 21 02:22:31 2009, rana, jenne, kiwamu, Update, ASS, OAF Model update and build instructions Untitled.png
       Reply  Mon Dec 21 19:24:29 2009, rana, Update, ASS, OAF Model update and build instructions mc12mcl.png
          Reply  Tue Dec 22 02:50:09 2009, rana, kiwamu, jenne, Update, ASS, OAF Feedaround ON and doing something good oaf.pngoaf.png
             Reply  Wed Dec 23 17:33:14 2009, rana, Update, ASS, OAF Feedaround ON and doing something good 
    Reply  Mon Dec 21 07:30:58 2009, ???, Update, ASS, OAF Model update and build instructions 
       Reply  Mon Dec 21 10:09:06 2009, jenne, Update, ASS, OAF Model update and build instructions 
Message ID: 2442     Entry time: Tue Dec 22 02:50:09 2009     In reply to: 2441     Reply to this: 2449
Author: rana, kiwamu, jenne 
Type: Update 
Category: ASS 
Subject: OAF Feedaround ON and doing something good 

Kiwamu made the OAF screen functional today - screenshot attached.

After this, I used the measured TF of the MC1 to MCL to filter the signals from the Wilcoxon accelerometers and feed them into the MC.

The noise at 3 Hz went down by a factor of ~3. There's a little excess created at 100 Hz. Its good to see that our intuition about feed-forward is OK.

I did all of the filter calculations by adapting the scripts that Haixing, Valera, and I got going at LLO. They're all in the mDV/extra/C1 SVN.

 

The Wiener code predicts much better performance from using more than just 2 horizontal accelerometers, but I was too lazy to do more channels today.

I also added the Rai box to the Ranger readout today - the noise at 0.1 Hz went down by a factor of 10 and the noise at 1 Hz is close to 10^-11 m/rHz.

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